[???]Access数据库字段的类型分别对应VC的什么类型啊 用SQL语句在Access数据库中创建表时,字段的类型分别对应VC的什么类型啊?比如:Access数据库中的 文本型 ----VC中的??(TEXT?)哪位大侠给个列表吧~~~因为我要做个对照表~~~紧急~~~~多加分啊~~~ 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 Access数据库中的 文本型 vc++ char型 128 个位 用于远程过程调用的唯一识别数字。 REAL 4 个字节 单精度浮点数,负数范围是从 –3.402823E38 到 –1.401298E-45,正数从1.401298E-45 到 3.402823E38,和 0。 FLOAT 8 个字节 双精度浮点数,负数范围是从 –1.79769313486232E308 到 –4.94065645841247E-324,正数从 4.94065645841247E-324 到 1.79769313486232E308,和 0。 SMALLINT 2 个字节 介于 –32,768 到 32,767 的短整型数。 INTEGER 4 个字节 介于 –2,147,483,648 到 2,147,483,647 的长整型数。 DECIMAL 17 个字节 容纳从 1028 - 1到 - 1028 - 1. 的值的精确的数字数据类型。你可以定义精度 (1 - 28) 和 符号 (0 - 定义精度)。缺省精度和符号分别是18和0。 TEXT 每一字符两字节(参见注意) 从零到最大 2,14 千兆字节。 IMAGE 视实际需要而定 从零到最大 2,14 千兆字节。用于 OLE 对象。 CHARACTER 每一字符两字节(参见注意) 长度从 0 到 255 个字符。 adEmpty = 0, adTinyInt = 16, adSmallInt = 2, adInteger = 3, adBigInt = 20, adUnsignedTinyInt = 17, adUnsignedSmallInt = 18, adUnsignedInt = 19, adUnsignedBigInt = 21, adSingle = 4, adDouble = 5, adCurrency = 6, adDecimal = 14, adNumeric = 131, adBoolean = 11, adError = 10, adUserDefined = 132, adVariant = 12, adIDispatch = 9, adIUnknown = 13, adGUID = 72, adDate = 7, adDBDate = 133, adDBTime = 134, adDBTimeStamp = 135, adBSTR = 8, adChar = 129, adVarChar = 200, adLongVarChar = 201, adWChar = 130, adVarWChar = 202, adLongVarWChar = 203, adBinary = 128, adVarBinary = 204, adLongVarBinary = 205, adChapter = 136, adFileTime = 64, adPropVariant = 138, adVarNumeric = 139看字面意思就知道了! 用SDK如何删除LISTVIEW中全部选择行? 关于安全断开连接?急 在线等 抢分 nasm 问题 各位大侠,如何通过ODBC数据源的名字,得到数据库文件的全路径? 研究过屏幕取词的人请进! 如何在一个工程中加入Socket的支持! 关于完成端口中tcp接收的问题 小问题啊,帮帮我吧 SDK的用法 请问南京哪些公司或工作室开发小软件(涉及算法和可视化实现)的啊 如何让程序执行时最大化? 编程--断开U盘
adTinyInt = 16,
adSmallInt = 2,
adInteger = 3,
adBigInt = 20,
adUnsignedTinyInt = 17,
adUnsignedSmallInt = 18,
adUnsignedInt = 19,
adUnsignedBigInt = 21,
adSingle = 4,
adDouble = 5,
adCurrency = 6,
adDecimal = 14,
adNumeric = 131,
adBoolean = 11,
adError = 10,
adUserDefined = 132,
adVariant = 12,
adIDispatch = 9,
adIUnknown = 13,
adGUID = 72,
adDate = 7,
adDBDate = 133,
adDBTime = 134,
adDBTimeStamp = 135,
adBSTR = 8,
adChar = 129,
adVarChar = 200,
adLongVarChar = 201,
adWChar = 130,
adVarWChar = 202,
adLongVarWChar = 203,
adBinary = 128,
adVarBinary = 204,
adLongVarBinary = 205,
adChapter = 136,
adFileTime = 64,
adPropVariant = 138,
adVarNumeric = 139
看字面意思就知道了!